Preheat the oven to 350°F (175°C) and grease a baking dish.
In a bowl, mix chopped spinach, cottage cheese, mozzarella, eggs, and milk until well combined.
Add breadcrumbs, Parmesan, garlic powder, salt, and pepper, then stir until evenly mixed.
Pour the mixture into the prepared dish and bake for 30–35 minutes, or until golden and set.
